CVE-2026-20102

Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software SAML Reflected Cross-Site Scripting Vulnerability

State
Published
Severity
6.1 Medium
Published
Mar 4, 2026
Updated
Mar 4, 2026
Reserved
Oct 8, 2025

Read the record on cve.org

Description

A vulnerability in the SAML 2.0 single sign-on (SSO) feature of Cisco Secure Firewall ASA Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against the SAML feature and access sensitive, browser-based information.

This vulnerability is due to insufficient input validation of multiple HTTP parameters. An attacker could exploit this vulnerability by persuading a user to access a malicious link. A successful exploit could allow the attacker to conduct a reflected XSS attack through an affected device.

Scores

CVSSScoreVectorSource
3.16.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Ncisco

Weaknesses

  • CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

ProductVersions
Cisco Secure Firewall Adaptive Security Appliance (ASA) SoftwareCisco
  • 9.16.1Affected
  • 9.16.1.28Affected
  • 9.16.2Affected
  • 9.16.2.3Affected
  • 9.16.2.7Affected
  • 9.17.1Affected
  • 9.16.2.11Affected
  • 9.16.2.13Affected
  • 9.16.2.14Affected
  • 9.17.1.7Affected
  • 9.17.1.9Affected
  • 9.17.1.10Affected
  • 9.17.1.11Affected
  • 9.17.1.13Affected
  • 9.17.1.15Affected
  • 9.17.1.20Affected
  • 9.17.1.30Affected
  • 9.17.1.33Affected
  • 9.17.1.39Affected
  • 9.17.1.45Affected
  • 9.17.1.46Affected
  • 9.23.1.13Affected
  • 9.20.4.7Affected
  • 9.22.2.13Affected
  • 9.18.4.66Affected
  • and 3 more versions
Cisco Secure Firewall Threat Defense (FTD) SoftwareCisco
  • 7.0.0Affected
  • 7.0.0.1Affected
  • 7.0.1Affected
  • 7.1.0Affected
  • 7.0.1.1Affected
  • 7.1.0.1Affected
  • 7.1.0.2Affected
  • 7.1.0.3Affected

References

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